United States / Build / Cascadia Universal Series wildfire-resistant windows

Cascadia Universal Series wildfire-resistant windows

Name: Cascadia Universal Series wildfire-resistant windows
Brand: Cascadia Windows Ltd.

This is a listed window assembly. Listing 8120-2441:0001. This site cites SFM 12-7A-2. Match the model and orientation.

CAL FIRE OSFM listing 8120-2441:0001 covers Cascadia Universal Series Wildfire Resistant Standard Picture, Standard Casement, and Plus Picture windows, each 30 by 50 inches. Standard Picture and Standard Casement use fiberglass framing with graphite-infused EPS foam filler and 2-inch Rockwool Rockboard 40 in the framing and glazing stops, 6-mm annealed exterior glass, 6-mm tempered interior glass, and a 13-mm stainless-steel spacer. Plus Picture is the same glass build-up with fiberglass framing that uses K130 fire-resistant resin.

Kind: listed-assembly. Brand: Cascadia Windows Ltd.. Listing evidence: OSFM WUI handbook 2026-08-29. Page reviewed 2026-08-29. JSON (CC BY 4.0)

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Documented attributes

Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.

Attribute	Value	Evidence source
Form
Assembly role	exterior window	CAL FIRE OSFM Building Materials Listing — 8120-2441:0001 (official-listing · Listing 8120-2441:0001, category and description)EXTERIOR WINDOWS FOR WILDLAND URBAN INTERFACE (W.U.I)
Glazing panes	2	CAL FIRE OSFM Building Materials Listing — 8120-2441:0001 (official-listing · Listing 8120-2441:0001, description)The Standard Picture and Standard Casement windows both have a 6-mm annealed exterior glass, a 6-mm tempered interior glass, and a 13-mm stainless steel spacer.
Fire
Tempered panes	1	CAL FIRE OSFM Building Materials Listing — 8120-2441:0001 (official-listing · Listing 8120-2441:0001, description)

Where this product goes

FA Exhibit OPN-100. Openings, named

Published requirement matches

These links are generated from the cited attributes above. They do not decide installation or a project result.

Colorado CWRC multilayered glazing · Colorado jurisdictions adopting CWRC in moderate or high mapped wildfire hazard areas
California multipane + tempered glazing · California mapped fire hazard areas
2018 IWUIC Class 1–2 multilayered glazing · Jurisdictions adopting unamended 2018 IWUIC Chapter 5
2021 IWUIC Class 1–2 multilayered glazing · Jurisdictions adopting unamended 2021 IWUIC Chapter 5
Austin Zone A multilayered glazing · City of Austin Proximity Zone A
IWUIC Class 1–2 multilayered glazing · Jurisdictions adopting unamended 2024 IWUIC Chapter 5
Oregon R327 multilayered glazing · Oregon jurisdictions that adopted ORSC R327
2006 Utah UWUI Class 1–2 multilayered glazing · Utah local compliance agencies adopting the 2006 Utah Wildland-Urban Interface Code
2006 Utah UWUI Class 1–2 tempered glazing · Utah local compliance agencies adopting the 2006 Utah Wildland-Urban Interface Code

Program	ID / source	Evidence date	Expires	Status
CAL FIRE BML	8120-2441:0001 · Search BML for 8120-2441:0001	2026-08-29	2027-06-30	listed

Tests and programs cited

SFM 12-7A-2 · test-method
OSFM BML · listing-program

Models named on the listing

Model	Application
Universal Series Wildfire Resistant, Standard Picture	30-in. by 50-in. picture window in the listed wall assembly
Universal Series Wildfire Resistant, Standard Casement	30-in. by 50-in. casement window in the listed wall assembly
Universal Series Wildfire Resistant, Plus Picture	30-in. by 50-in. picture window with K130 fire-resistant resin framing

Specification notes

The listing names the tested 30-by-50-inch sections and the supporting wall (2-by-4 SPF plates and studs at 16 inches on center, 5/8-inch Type X gypsum both sides, Protecto Wrap at the rough opening, mineral wool at the head and jambs, and the named caulking). Match that assembly.
Cascadia's product page uses WFR and WFR Plus for the same Universal Series options the listing names Standard Picture, Standard Casement, and Plus Picture.

Can I use this here

Local force

The rule and every matching product for the United States

Requirement constraints (10)

Each table compares this product's documented attributes with one published requirement. The comparison does not change from place to place, so it is printed once.

Oregon R327 multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

Austin Zone A multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

California multipane + tempered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched
Tempered panes	Tempered panes ≥ 1	1	matched

IWUIC Class 1–2 multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

Colorado CWRC multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

2018 IWUIC Class 1–2 multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

2021 IWUIC Class 1–2 multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

2006 Utah UWUI Class 1–2 20-minute glazing undocumented
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Fire resistance	Fire resistance ≥ 20 min	Not documented	undocumented

2006 Utah UWUI Class 1–2 multilayered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Glazing panes	Glazing panes ≥ 2	2	matched

2006 Utah UWUI Class 1–2 tempered glazing matched
Field	Required	Documented value	State
Assembly role	Assembly role is one of exterior window, glazed door, skylight	exterior window	matched
Tempered panes	Tempered panes ≥ 1	1	matched

Sources

CAL FIRE OSFM Building Materials Listing — 8120-2441:0001 — CAL FIRE OSFM (listing-body). Accessed 2026-08-29.
Cascadia Universal Series windows — Cascadia Windows & Doors (manufacturer). Accessed 2026-08-29.

Cascadia Universal Series wildfire-resistant windows. FireApproved. https://fireapproved.com/materials/cascadia-windows-ltd-universal-series-wildfire-resistant-windows/. Last verified 2026-08-29.